On Mon, January 4, 2016 6:08 pm, David Both wrote:
> Power supply
>
> On 01/04/2016 07:03 PM, tdukes@xxxxxxxxxxxxxxxxxxx wrote:
>> Hello,
>>
>> I have an old IBM Netvista. Lately, it would seem to go into sleep mode
>> but I have all that disabled. I would have to power off to wake it up.
>> Now I think its done. I can't even get to the CMOS/BIOS. The power light
>> is on but no beeps or anything spinning up.
>>
>> I have two of these Netvistas and had put on away when I upgraded one of
>> the machines. I pulled the HD from it and installed it in the other.
>> Same thng. I'm fairly certain it was working when I updraded. I've
>> swapped out monitors as well.
>>
>> Power supply or hard drive, any ideas?
In my book in the order of likelihood I would list the following:
1. system board (motherboard, meaning the same, but I still consider
"motherboard" a jargon ;-) - likely reasons: leaked electrolytic
capacitors either filtering BUS leads or around CPU, or microcrack
2. Power supply
3. some dead expansion card - remove all you can and try to boot as
minimal amount of metal as you can (swap add-on video card for another if
you don't have on board video chip). I would even disconnect whatever
cables lead to front (and/or rare) panels - some short in them can cause
this too.
4. memory or cpu (main CPU in the socket 0 - the one the things boots on
in multi-socket boards) re-seat memory and CPU if you didn't try yet and
try to boot again. Try to boot with minimal hardware, only one CPU,
minimum RAM.
Good luck!
Valeri
>>
>> TIA
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>>
>>
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>> David P. Both, RHCE
>> Millennium Technology Consulting LLC
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>>
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++++++++++++++++++++++++++++++++++++++++
Valeri Galtsev
Sr System Administrator
Department of Astronomy and Astrophysics
Kavli Institute for Cosmological Physics
University of Chicago
Phone: 773-702-4247
++++++++++++++++++++++++++++++++++++++++
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